Description

3,5,5-Trimethylhexanoyl Peroxide is a highly effective organic peroxide initiator widely used in industrial polymerization processes. Its controlled decomposition characteristics make it a critical component for achieving specific polymer properties and reaction kinetics. This compound is essential for manufacturers in the plastics, resins, and specialty chemical industries seeking reliable and consistent radical initiation for polymerization and cross-linking reactions.

Application

• Polymerization Initiator: Primary use as a free-radical initiator for the production of polyvinyl chloride (PVC), low-density polyethylene (LDPE), and polystyrene (PS).
• Cross-linking Agent: Used in the curing and cross-linking of unsaturated polyester resins for fiberglass-reinforced plastics (FRP) and composite materials.
• Synthesis Intermediate: Serves as a key intermediate in the synthesis of other specialty organic peroxides and fine chemicals.
• Acrylic Resin Production: Employed in the polymerization of acrylic and methacrylic monomers for adhesives, coatings, and impact modifiers.
• Rubber Vulcanization: Acts as a co-agent or initiator in the vulcanization process for certain synthetic rubbers.
• Surface Treatment: Used in the modification of polymer surfaces to improve adhesion properties for printing or coating.

Basic Information

Product Name	3,5,5-Trimethylhexanoyl Peroxide
CAS No.	3851-87-4
Molecular Formula	C18H34O4
Molecular Weight	314.46 g/mol
Synonyms	3,5,5-Trimethylhexanoyl Peroxide; Bis(3,5,5-trimethylhexanoyl) peroxide; Peroxide, bis(3,5,5-trimethyl-1-oxohexyl); Trigonox 36; Perhexyl PV; TMHP; Isooctanoyl peroxide; 3,5,5-Trimethylcaproyl peroxide
EINECS	223-352-3

Quality Control

Our production of 3,5,5-Trimethylhexanoyl Peroxide adheres to stringent quality management protocols to ensure batch-to-batch consistency and safety. Each lot is analyzed for critical parameters including active oxygen content, purity, and impurity profile. Certificates of Analysis (COA) detailing all test results are provided and the product meets relevant industry standards for peroxide initiators. Our quality system is designed to support our customers' own GMP and ISO compliance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flame. Recommended storage temperature is below 25°C (77°F). Keep away from incompatible materials such as reducing agents, strong bases, acids, and metals. This product is light-sensitive (store away from light) and a strong oxidizer; observe all local regulations for hazardous material storage.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Active Oxygen)	≥ 4.8 %
Purity (HPLC)	≥ 95.0 %
Acidity (as 3,5,5-Trimethylhexanoic Acid)	≤ 1.0 %
Water Content (Karl Fischer)	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.